[R] difference between coxph and cph

Göran Broström gb at stat.umu.se
Wed Apr 21 17:07:57 CEST 2004

On Wed, Apr 21, 2004 at 07:09:03AM -0400, Frank E Harrell Jr wrote:

> No, cph is essentially a wrapper for coxph and uses the same computations.
>  The problem is that Deb did not read the documentation to summary.Design
> nor the Overview of the Design package.  

And obviously that I didn't :-( 

> The Design package by default computes inter-quartile-range effects.

Interesting idea... is this a common procedure in biostatistics? 
 Göran Broström                    tel: +46 90 786 5223
 Department of Statistics          fax: +46 90 786 6614
 Umeå University                   http://www.stat.umu.se/egna/gb/
 SE-90187 Umeå, Sweden             e-mail: gb at stat.umu.se

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